Re: KRULLS FROM PRENZLAU

My Great Grandfather, Nathan D. Krull came through Ellis island in the 1800's. He made a good deal of money peddling pots and pans across the eastern-midwestern states.He then built a Hospital, which supposedly bears the family name. The name was shortened and nobody can find the original surname.Any info that might help would be appreciated.Glad to reciprocate with any other names etc.Thanks.